Spyware in Google Chrome?

After the desinstallation of Chrome a process remains in memory, and this process accesses to the registry to modify the security rules of IE and Firefox. A way to continue to spy the user after desinstallation?

At the end of desinstallation, a process called "googleupdate.exe" stays in memory. This file was installed with Chrome, but also with the other Google tools (Earth, Desktop, Talk, Picasa...).

The problem is this file remains active after desinstallation and it accesses to the registry key GoogleUpdate.OnDemandCOMClass. Its classId is {2F0E2680-9FF5-43C0-B76E-114A56E93598} going to HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Low Rights\Elevation Policy

The "googleupdate.exe" file can modify the security level of Internet Explorer to the medium level (value Policy = 3).

We can also find a strange key for Firefox:HKEY_CURRENT_USER\Software\MozillaPlugins\@tools.google.com/Google Update;version=5

Your copy of Google Chrome includes one or more unique application numbers. These numbers and information about your installation of the browser (e.g., version number, language) will be sent to Google when you first install and use it and when Google Chrome automatically checks for updates.

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So each computer with a Google product is identified. Moreover, this "googleupdate.exe"

From a technical perspective, Firefox can definitely keep up. Soon Firefox will have a much faster JavaScript engine, for example. But with Google’s visibility Chrome will easily grow a huge user base. They’re already advertising it on AdWords.